<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        a{
            text-decoration: none;
        }
        a.down{
            display: block;
            box-sizing: border-box;
            width: 130px;
            height: 40px;
            background-color: #ddd;
            border-radius: 10px;
            color: #d81e06;
            line-height: 40px;
            text-indent: 50px;
            background-image: url(./assets/image1.png);
            background-size: 25px 25px;
            background-repeat: no-repeat;
            background-position: 15px center;
        }
        a.down:hover{
            background-color: #d81e06;
            color: #fff;
            background-image: url(./assets/image2.png);
        }
    </style>
</head>
<body>
    <a href="" class="down"> 点击下载 </a>
</body>
</html>